منابع مشابه
Error Ellipsoid Analysis for the Diameter Measurement of Cylindroid Components Using a Laser Radar Measurement System
The use of three-dimensional (3D) data in the industrial measurement field is becoming increasingly popular because of the rapid development of laser scanning techniques based on the time-of-flight principle. However, the accuracy and uncertainty of these types of measurement methods are seldom investigated. In this study, a mathematical uncertainty evaluation model for the diameter measurement...
متن کاملThree Dimensional Ultrasonography of the Eye and Measurement of Optical Nerve Sheet Diameter in Dog
Objective- To determine the possibility of three-dimensional ultrasonography (3DUS) and measurement of optical nerve sheet by this method. Design- Descriptive study. Animals- 10 mixed normal dogs (5males, 5 females), age 1-1.5 year, and weighting 15±5 kg Procedure- 3D ultrasounds of the eyes were evaluated and the normal optical nerves in 3DUS images were measured using Volouson 730 pro....
متن کاملBlood vessel diameter Measurement on retinal Image
Accurate measurement of vessel diameters on retinal images plays an important part in diagnosing cardiovascular diseases and early signs of certain systemic diseases, such as diabetes and hypertension. In this study we develop new method based on computer aided to determine the width of retinal blood vessels by analysing the color fundus image. Retinal vessel diameter was measured based on bloo...
متن کاملShaft Diameter Measurement Using Structured Light Vision
A method for measuring shaft diameters is presented using structured light vision measurement. After calibrating a model of the structured light measurement, a virtual plane is established perpendicular to the measured shaft axis and the image of the light stripe on the shaft is projected to the virtual plane. On the virtual plane, the center of the measured shaft is determined by fitting the p...
متن کاملP 345 A new system for automatic on-line measurement of retinal vessel diameter
Methods A measuring ophthalmoscope based on the Zeiss retina camera RC 310 is coupled with a CCD device. A frame grabber digitizes the picture section with the interesting vessel segments. An adaptive algorithm recognizes the position and direction of the vessels automatically and calculates the vessel diameters. Other measuring data are recorded additionally, for example the R spike of the ele...
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ژورنال
عنوان ژورنال: OALib
سال: 2018
ISSN: 2333-9721,2333-9705
DOI: 10.4236/oalib.1104585